Q: Is 243,215 a Prime Number?
A: No, 243,215 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 243215 can be evenly divided by 1 5 7 35 6,949 34,745 48,643 and 243,215, with no remainder.
Since 243,215 cannot be divided by just 1 and 243,215, it is not a prime number.